Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1995-07-14
1997-08-26
Freay, Charles G.
Power plants
Combustion products used as motive fluid
Combustion products generator
60739, 60747, 60748, 60749, F02C 100
Patent
active
056600453
ABSTRACT:
The present invention has an object to provide a gas turbine combustor which is able to effect stable combustion in a wide range of fuel flow rate. A burner 1 is provided with fuel nozzles 31 and 32. When a fuel flow rate is small, diffusion flame is formed with fuel supplied from the nozzle 31 with a ring-shaped flame stabilizer 11. Next, fuel is supplied from the nozzle 32 to mix with air, reach to the flame stabilizer 11 and be held by the diffusion flame already formed, whereby stable premixed flames are formed in the flame stabilizer 11 from a range of low fuel air ratio. Further, when flame is propagated from the burner 1 to the burner 2, a fuel air ratio at the outer periphery side of the burner 1 is locally raised by the fuel supplied from the nozzle 31, whereby the combustion stability can be raised in a wide range of fuel flow rate and propagation of flame to adjacent burners becomes easy.
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Azuhata Shigeru
Ito Kazuyuki
Kobayashi Nariyoshi
Moritomo Yoshikazu
Murakami Tadayoshi
Freay Charles G.
Hitachi , Ltd.
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